Boundary Atlas

Chesterfield, Missouri

Chesterfield is a city in St. Louis County, Missouri, with 49,999 residents in 2020. It is in Missouri's 2nd congressional district. It spans 3 state house districts. Its state senate district is State Senate District 15.

49,999residents (2020 Census)
31.8 sq miland area
5ZIP codes
1congressional district

County

CountyShare of residents
St. Louis County100%

Congressional district

Congressional districtShare of residents
Missouri's 2nd congressional district (MO-02)100%

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (MO-02)Ann Wagner (R)202-225-1621100%
U.S. SenatorEric Schmitt (R)202-224-5721 · contact formstatewide
U.S. SenatorJosh Hawley (R)202-224-6154 · contact formstatewide
State Senator (State Senate District 15)David Gregory (R)100%
State Representative (State House District 101)Ben Keathley (R)75%
State Representative (State House District 87)Connie Steinmetz (Democratic)14%
State Representative (State House District 89)George Hruza (R)11%

Officials serving now (members of Congress until January 3, 2027). Sources: State legislators: Open States (public domain); Members of Congress: the @unitedstates project, congress-legislators (CC0).

Local government

State legislative districts

State senate districtShare of residents
State Senate District 15100%

State house districtShare of residents
State House District 10175%
State House District 8714%
State House District 8911%

ZIP codes

Percentages mark ZIPs only partly in Chesterfield: the share of that ZIP's residents living in it.

Get this in your AI agent

Your agent can get Chesterfield's counties and districts with shares, its ZIP codes (level='zcta'), and its boundary as GeoJSON (get_boundaries). Add https://boundarymcp.com/mcp to Claude, ChatGPT, Cursor or Codex (free, no key; how), then:

related_geographies(id="us:place:2913600")

Chesterfield here is the Census Bureau's place boundary as of January 1, 2025. Shares are of 2020 Census population. Districts are the maps in force for the November 3, 2026 election.